/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package dvd.servlets;

import java.io.IOException;
import javax.ejb.EJB;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import dvd.gestionnaires.*;
import dvd.modeles.*;
import java.io.PrintWriter;

@WebServlet(name = "ServletConnexion", urlPatterns = {"/ServletConnexion"})
public class ServletConnexion extends HttpServlet {

    @EJB
    private gestionnaireUsers gestionnaireUsers;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String action = request.getParameter("action");
        HttpSession session = request.getSession(true);
        PrintWriter out = response.getWriter();


        if (action.equals("authentifier")) {
            String login = request.getParameter("login");
            String mdp = request.getParameter("motDePasse");

            if (gestionnaireUsers.userExiste(login) == true) {
                Utilisateur u = gestionnaireUsers.getUserFromLogin(login);
                if (mdp.equals(u.getMdp())) {
                    session.setAttribute("login", login);
                    session.setAttribute("droit", u.getDroit());
                    session.setAttribute("connecte", true);
                    session.setAttribute("messageErreur", "Bienvenue " + u.getFirstname() + " " + u.getLastname());
                    out.write("true");
                } else {
                    session.setAttribute("connecte", false);
                    request.setAttribute("messageErreur", "Mot de passe incorrect.");
                    out.write("Mot de passe incorrect.");
                }

            } else { 
                session.setAttribute("connecte", false);
                request.setAttribute("messageErreur", "Vos identifiants sont incorrects.");
                out.write("Vos identifiants sont incorrects.");
            }


        } else if (action.equals("deconnexion")) {
            session.setAttribute("connecte", false);
            session.setAttribute("droit", "utilisateur");
            session.setAttribute("messageErreur", "");
            // Redirection vers la page d’accueil   
            RequestDispatcher dp = request.getRequestDispatcher("index.jsp");
            dp.forward(request, response);
        }


    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
